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| | Lets invert the matrix: |  |
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1- Press 1/X or type
INV ( [ 2 , 3 ] [ 4 , 5 ] )
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| 2- Press [ ENTER ] |
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3- it will show the inverse matrix
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Remember the "," between numbers.
Here coma is used as separator, not as fraction mark.
HP49G uses "." as fraction mark, according to the
default flag.
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